Same for listitem

If you give us code to reproduce the error we can try to help.

rolling back to 12.0.0 fixes this
also: "marked-gfm-heading-id": "^3.0.6",

Looks like its list items

const md = marked.parse(markdown) as string
console.log(md) // [object object]

Image below, all three are supposed to be list items

It works for me with the latest version of marked-gfm-heading-id

This should be considered critical, as all of angular.dev is showing unprocessed links.
See for example https://angular.dev/essentials/components#defining-a-component

@rsivan Looks like that is fixed in angular/angular#57377